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Optical absorption and emission in the defect-chalcopyrite semiconductor CdGa2Te4
http://hdl.handle.net/10087/2947
http://hdl.handle.net/10087/2947e2a16925-f431-4bf7-9d32-09eaa5f897df
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
JApplPhys_97_043507.pdf (131.4 kB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2008-02-29 | |||||
| タイトル | ||||||
| タイトル | Optical absorption and emission in the defect-chalcopyrite semiconductor CdGa2Te4 | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| 著者 |
Ozaki, Shunji
× Ozaki, Shunji× Muto, Kei-Ichi× Nagata, Hisatoshi× Adachi, Sadao |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Optical-absorption and photoluminescence (PL) spectra have been measured on the\ndefect-chalcopyrite-type semiconductor CdGa2Te4 in the 0.9–1.5-eV photon-energy range at\ntemperatures between 11 and 300 K. The temperature dependence of the direct-gap energy of\nCdGa2Te4 has been determined from the optical-absorption spectra and fit using the Varshni\nequation and an analytical four-parameter expression developed for the explanation of the band-gap\nshrinkage effect in semiconductors. The PL spectra show an asymmetric emission band peaking at\n,1.326 eV and a symmetric emission band at ～1.175 eV at T=11 K, which are attributed to\ndonor-acceptor-pair recombination between exponentially tailed or Gaussian-like donor states and\nacceptor levels, respectively. A multiple-exponential fit analysis of the PL emission suggests\nacceptor levels of 50 and 86 meV and a deep donor level of 190 meV, together with an unidentified\nshallow level of 9 meV. An energy-band scheme has been proposed for the explanation of PL\nemission observed in CdGa2Te4. | |||||
| 書誌情報 |
Journal of Applied Physics 巻 97, 号 4, p. 043507-1-043507-7, 発行日 2005-02-15 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0021-8979 | |||||
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| 関連タイプ | isIdenticalTo | |||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | info:doi/10.1063/1.1845582 | |||||
| 権利 | ||||||
| 権利情報 | (C)2005 American Institute of Physics | |||||
| フォーマット | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | application/pdf | |||||
| 著者版フラグ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
| 出版者 | ||||||
| 出版者 | American Institute of Physics | |||||
| 資源タイプ | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | Journal Article | |||||
| 異版である | ||||||
| 関連タイプ | isVersionOf | |||||
| 識別子タイプ | URI | |||||
| 関連識別子 | http://jap.aip.org/ | |||||
| 更新日 | ||||||
| 日付 | 2017-03-27 | |||||
| 日付タイプ | Created | |||||
